
\begin{table}[!htbp] \centering 
  \caption{Panel B: Average browsing time} 
  \label{} 
\begin{tabular}{@{\extracolsep{5pt}} ccc} 
\\[-1.8ex]\hline 
\hline \\[-1.8ex] 
Metric & Treatment & Placebo \\ 
\hline \\[-1.8ex] 
Visited (Mean) & 3.43 & 3.39 \\ 
Visited (SD) & 3.50 & 3.47 \\ 
\textgreater = 60s (Mean) & 4.41 & 4.08 \\ 
\textgreater = 60s (SD) & 3.53 & 3.53 \\ 
\textgreater = 180s (Mean) & 6.15 & 5.84 \\ 
\textgreater = 180s (SD) & 3.69 & 3.81 \\ 
\hline \\[-1.8ex] 
\end{tabular} 
\end{table} 
